Icon has Black Background

It took me a while to just get the MailScanner link to show up, I had to even get WayToTheWeb to help me out with it! But now I've gotten the link to show and after having trouble getting the icon to show... its showing a black background!

Anybody know whats up with it? I have tried to upload .jpg, .png, .gif versions. Redid the icon and made a static white background. I've done it all... I think. Anybody have any idea whats up with it?